The interface to the script modules.

Public Member Functions
Miscellaneous
virtual asIScriptEngine *	GetEngine ()=0
	Returns a pointer to the engine. More...

virtual void	SetName (const char *name)=0
	Sets the name of the module. More...

virtual const char *	GetName ()=0
	Gets the name of the module. More...

Compilation
virtual int	AddScriptSection (const char name, const char code, size_t codeLength=0, int lineOffset=0)=0
	Add a script section for the next build. More...

virtual int	Build ()=0
	Build the previously added script sections. More...

Functions
virtual int	GetFunctionCount ()=0
	Returns the number of global functions in the module. More...

virtual int	GetFunctionIdByIndex (int index)=0
	Returns the function id by index. More...

virtual int	GetFunctionIdByName (const char *name)=0
	Returns the function id by name. More...

virtual int	GetFunctionIdByDecl (const char *decl)=0
	Returns the function id by declaration. More...

virtual asIScriptFunction *	GetFunctionDescriptorByIndex (int index)=0
	Returns the function descriptor for the script function. More...

virtual asIScriptFunction *	GetFunctionDescriptorById (int funcId)=0
	Returns the function descriptor for the script function. More...

Global variables
virtual int	ResetGlobalVars ()=0
	Reset the global variables of the module. More...

virtual int	GetGlobalVarCount ()=0
	Returns the number of global variables in the module. More...

virtual int	GetGlobalVarIndexByName (const char *name)=0
	Returns the global variable index by name. More...

virtual int	GetGlobalVarIndexByDecl (const char *decl)=0
	Returns the global variable index by declaration. More...

virtual const char *	GetGlobalVarDeclaration (int index)=0
	Returns the global variable declaration. More...

virtual const char *	GetGlobalVarName (int index)=0
	Returns the global variable name. More...

virtual int	GetGlobalVarTypeId (int index, bool *isConst=0)=0
	Returns the type id for the global variable. More...

virtual void *	GetAddressOfGlobalVar (int index)=0
	Returns the pointer to the global variable. More...

Type identification
virtual int	GetObjectTypeCount ()=0
	Returns the number of object types. More...

virtual asIObjectType *	GetObjectTypeByIndex (asUINT index)=0
	Returns the object type interface by index. More...

virtual int	GetTypeIdByDecl (const char *decl)=0
	Returns a type id by declaration. More...

Enums
virtual int	GetEnumCount ()=0
	Returns the number of enum types declared in the module. More...

virtual const char *	GetEnumByIndex (asUINT index, int *enumTypeId)=0
	Returns the enum type. More...

virtual int	GetEnumValueCount (int enumTypeId)=0
	Returns the number of values defined for the enum type. More...

virtual const char *	GetEnumValueByIndex (int enumTypeId, asUINT index, int *outValue)=0
	Returns the name and value of the enum value. More...

Typedefs
virtual int	GetTypedefCount ()=0
	Returns the number of typedefs in the module. More...

virtual const char *	GetTypedefByIndex (asUINT index, int *typeId)=0
	Returns the typedef. More...

Dynamic binding between modules
virtual int	GetImportedFunctionCount ()=0
	Returns the number of functions declared for import. More...

virtual int	GetImportedFunctionIndexByDecl (const char *decl)=0
	Returns the imported function index by declaration. More...

virtual const char *	GetImportedFunctionDeclaration (int importIndex)=0
	Returns the imported function declaration. More...

virtual const char *	GetImportedFunctionSourceModule (int importIndex)=0
	Returns the declared imported function source module. More...

virtual int	BindImportedFunction (int importIndex, int funcId)=0
	Binds an imported function to the function from another module. More...

virtual int	UnbindImportedFunction (int importIndex)=0
	Unbinds an imported function. More...

virtual int	BindAllImportedFunctions ()=0
	Binds all imported functions in a module, by searching their equivalents in the declared source modules. More...

virtual int	UnbindAllImportedFunctions ()=0
	Unbinds all imported functions. More...

Bytecode saving and loading
virtual int	SaveByteCode (asIBinaryStream *out)=0
	Save compiled bytecode to a binary stream. More...

virtual int	LoadByteCode (asIBinaryStream *in)=0
	Load pre-compiled bytecode from a binary stream. More...

Member Function Documentation

virtual int asIScriptModule::AddScriptSection	(	const char *	name,
		const char *	code,
		size_t	codeLength = `0`,
		int	lineOffset = `0`
	)

pure virtual

Parameters

[in]	name	The name of the script section
[in]	code	The script code buffer
[in]	codeLength	The length of the script code
[in]	lineOffset	An offset that will be added to compiler message line numbers

Returns: A negative value on error.

Return values

asMODULE_IS_IN_USE The module is currently in use.

This adds a script section to the module. All sections added will be treated as if one large script. Errors reported will give the name of the corresponding section.

The code added is copied by the engine, so there is no need to keep the original buffer after the call. Note that this can be changed by setting the engine property asEP_COPY_SCRIPT_SECTIONS with asIScriptEngine::SetEngineProperty.

virtual int asIScriptModule::BindAllImportedFunctions ( )

pure virtual

Returns: A negative value on error.

Return values

asERROR	An error occurred.
asCANT_BIND_ALL_FUNCTIONS	Not all functions where bound.

This functions tries to bind all imported functions in the module by searching for matching functions in the suggested modules. If a function cannot be bound the function will give an error asCANT_BIND_ALL_FUNCTIONS, but it will continue binding the rest of the functions.

virtual int asIScriptModule::BindImportedFunction	(	int	importIndex,
		int	funcId
	)

pure virtual

Parameters

[in]	importIndex	The index of the imported function.
[in]	funcId	The function id of the function that will be bound to the imported function.

Returns: A negative value on error.

Return values

asNO_FUNCTION	importIndex or fundId is incorrect.
asINVALID_INTERFACE	The signature of function doesn't match the import statement.

The imported function is only bound if the functions have the exact same signature, i.e the same return type, and parameters.

virtual int asIScriptModule::Build ( )

pure virtual

Returns: A negative value on error

Return values

asINVALID_CONFIGURATION	The engine configuration is invalid.
asERROR	The script failed to build.
asBUILD_IN_PROGRESS	Another thread is currently building.

Builds the script based on the added sections, and registered types and functions. After the build is complete the script sections are removed to free memory. If the script module needs to be rebuilt all of the script sections needs to be added again.

Compiler messages are sent to the message callback function set with asIScriptEngine::SetMessageCallback. If there are no errors or warnings, no messages will be sent to the callback function.

virtual void* asIScriptModule::GetAddressOfGlobalVar ( int index )

pure virtual

Parameters

[in] index The index of the global variable.

Returns: A pointer to the global variable, or null if not found.

This method should be used to retrieve the pointer of a variable that you wish to access.

virtual asIScriptEngine* asIScriptModule::GetEngine ( )

pure virtual

Returns: A pointer to the engine.

virtual const char* asIScriptModule::GetEnumByIndex	(	asUINT	index,
		int *	enumTypeId
	)

pure virtual

Parameters

[in]	index	The index of the enum type.
[out]	enumTypeId	Receives the type id of the enum type.

Returns: The name of the enum type, or null on error.

virtual int asIScriptModule::GetEnumCount ( )

pure virtual

Returns: The number of enum types in the module.

virtual const char* asIScriptModule::GetEnumValueByIndex	(	int	enumTypeId,
		asUINT	index,
		int *	outValue
	)

pure virtual

Parameters

[in]	enumTypeId	The type id of the enum type.
[in]	index	The index of the enum value.
[out]	outValue	Receives the numeric value.

Returns: The name of the enum value.

virtual int asIScriptModule::GetEnumValueCount ( int enumTypeId )

pure virtual

Parameters

[in] enumTypeId The type id of the enum type.

Returns: The number of enum values or a negative value on error.

Return values

asINVALID_ARG enumTypeId is not an enum type.

virtual int asIScriptModule::GetFunctionCount ( )

pure virtual

Returns: A negative value on error, or the number of global functions in this module.

Return values

asERROR The module was not compiled successfully.

This method retrieves the number of compiled script functions.

virtual asIScriptFunction* asIScriptModule::GetFunctionDescriptorById ( int funcId )

pure virtual

Parameters

[in] funcId The id of the function or method.

Returns: A pointer to the function description interface, or null if not found.

virtual asIScriptFunction* asIScriptModule::GetFunctionDescriptorByIndex ( int index )

pure virtual

Parameters

[in] index The index of the function.

Returns: A pointer to the function description interface, or null if not found.

virtual int asIScriptModule::GetFunctionIdByDecl ( const char * decl )

pure virtual

Parameters

[in] decl The function signature.

Returns: A negative value on error, or the function id.

Return values

asERROR	The module was not compiled successfully.
asINVALID_DECLARATION	The decl is invalid.
asMULTIPLE_FUNCTIONS	Found multiple matching functions.
asNO_FUNCTION	Didn't find any matching functions.

This method should be used to retrieve the id of the script function that you wish to execute. The id is then sent to the context's Prepare method.

The method will find the script function with the exact same declaration.

virtual int asIScriptModule::GetFunctionIdByIndex ( int index )

pure virtual

Parameters

[in] index The index of the function.

Returns: A negative value on error, or the function id.

Return values

asNO_FUNCTION There is no function with that index.

This method should be used to retrieve the id of the script function that you wish to execute. The id is then sent to the context's Prepare method.

virtual int asIScriptModule::GetFunctionIdByName ( const char * name )

pure virtual

Parameters

[in] name The name of the function.

Returns: A negative value on error, or the function id.

Return values

asERROR	The module was not compiled successfully.
asMULTIPLE_FUNCTIONS	Found multiple matching functions.
asNO_FUNCTION	Didn't find any matching functions.

This method should be used to retrieve the id of the script function that you wish to execute. The id is then sent to the context's Prepare method.

virtual int asIScriptModule::GetGlobalVarCount ( )

pure virtual

Returns: A negative value on error, or the number of global variables in the module.

Return values

asERROR The module was not compiled successfully.

virtual const char* asIScriptModule::GetGlobalVarDeclaration ( int index )

pure virtual

Parameters

[in] index The index of the global variable.

Returns: A null terminated string with the variable declaration, or null if not found.

This method can be used to retrieve the variable declaration of the script variables that the host application will access. Verifying the declaration is important because, even though the script may compile correctly the user may not have used the variable types as intended.

virtual int asIScriptModule::GetGlobalVarIndexByDecl ( const char * decl )

pure virtual

Parameters

[in] decl The global variable declaration.

Returns: A negative value on error, or the global variable index.

Return values

asERROR	The module was not built successfully.
asNO_GLOBAL_VAR	The matching global variable was found.

This method should be used to retrieve the index of the script variable that you wish to access.

The method will find the script variable with the exact same declaration.

virtual int asIScriptModule::GetGlobalVarIndexByName ( const char * name )

pure virtual

Parameters

[in] name The name of the global variable.

Returns: A negative value on error, or the global variable index.

Return values

asERROR	The module was not built successfully.
asNO_GLOBAL_VAR	The matching global variable was found.

This method should be used to retrieve the index of the script variable that you wish to access.

virtual const char* asIScriptModule::GetGlobalVarName ( int index )

pure virtual

Parameters

[in] index The index of the global variable.

Returns: A null terminated string with the variable name, or null if not found.

virtual int asIScriptModule::GetGlobalVarTypeId	(	int	index,
		bool *	isConst = `0`
	)

pure virtual

Parameters

[in]	index	The index of the global variable.
[out]	isConst	Receives the constness indicator of the variable.

Returns: The type id of the global variable, or a negative value on error.

Return values

asINVALID_ARG The index is out of range.

virtual int asIScriptModule::GetImportedFunctionCount ( )

pure virtual

Returns: A negative value on error, or the number of imported functions.

Return values

asERROR The module was not built successfully.

This function returns the number of functions that are imported in a module. These functions need to be bound before they can be used, or a script exception will be thrown.

virtual const char* asIScriptModule::GetImportedFunctionDeclaration ( int importIndex )

pure virtual

Parameters

[in] importIndex The index of the imported function.

Returns: A null terminated string with the function declaration, or null if not found.

Use this function to get the declaration of the imported function. The returned declaration can be used to find a matching function in another module that can be bound to the imported function.

virtual int asIScriptModule::GetImportedFunctionIndexByDecl ( const char * decl )

pure virtual

Parameters

[in] decl The function declaration of the imported function.

Returns: A negative value on error, or the index of the imported function.

Return values

asERROR	The module was not built successfully.
asMULTIPLE_FUNCTIONS	Found multiple matching functions.
asNO_FUNCTION	Didn't find any matching function.

This function is used to find a specific imported function by its declaration.

virtual const char* asIScriptModule::GetImportedFunctionSourceModule ( int importIndex )

pure virtual

Parameters

[in] importIndex The index of the imported function.

Returns: A null terminated string with the name of the source module, or null if not found.

Use this function to get the name of the suggested module to import the function from.

virtual const char* asIScriptModule::GetName ( )

pure virtual

Returns: The name of the module.

virtual asIObjectType* asIScriptModule::GetObjectTypeByIndex ( asUINT index )

pure virtual

Parameters

[in] index The index of the type.

Returns: The object type interface for the type, or null if not found.

virtual int asIScriptModule::GetObjectTypeCount ( )

pure virtual

Returns: The number of object types declared in the module.

virtual const char* asIScriptModule::GetTypedefByIndex	(	asUINT	index,
		int *	typeId
	)

pure virtual

Parameters

[in]	index	The index of the typedef.
[out]	typeId	The type that the typedef aliases.

Returns: The name of the typedef.

virtual int asIScriptModule::GetTypedefCount ( )

pure virtual

Returns: The number of typedefs in the module.

virtual int asIScriptModule::GetTypeIdByDecl ( const char * decl )

pure virtual

Parameters

[in] decl The declaration of the type.

Returns: A negative value on error, or the type id of the type.

Return values

asINVALID_TYPE decl is not a valid type.

Translates a type declaration into a type id. The returned type id is valid for as long as the type is valid, so you can safely store it for later use to avoid potential overhead by calling this function each time. Just remember to update the type id, any time the type is changed within the engine, e.g. when recompiling script declared classes, or changing the engine configuration.

The type id is based on a sequence number and depends on the order in which the type ids are queried, thus is not guaranteed to always be the same for each execution of the application. The asETypeIdFlags can be used to obtain some information about the type directly from the id.

A base type yields the same type id whether the declaration is const or not, however if the const is for the subtype then the type id is different, e.g. string@ isn't the same as const string@ but string is the same as const string.

virtual int asIScriptModule::LoadByteCode ( asIBinaryStream * in )

pure virtual

Parameters

[in] in The input stream.

Returns: A negative value on error.

Return values

asINVALID_ARG	The stream object wasn't specified.
asBUILD_IN_PROGRESS	Another thread is currently building.

This method is used to load pre-compiled byte code from disk or memory. The application must implement an object that inherits from asIBinaryStream to provide the necessary stream operations.

It is expected that the application performs the necessary validations to make sure the pre-compiled byte code is from a trusted source. The application should also make sure the pre-compiled byte code is compatible with the current engine configuration, i.e. that the engine has been configured in the same way as when the byte code was first compiled.

virtual int asIScriptModule::ResetGlobalVars ( )

pure virtual

Returns: A negative value on error.

Return values

asERROR The module was not compiled successfully.

Resets the global variables declared in this module to their initial value.

virtual int asIScriptModule::SaveByteCode ( asIBinaryStream * out )

pure virtual

Parameters

[in] out The output stream.

Returns: A negative value on error.

Return values

asINVALID_ARG The stream object wasn't specified.

This method is used to save pre-compiled byte code to disk or memory, for a later restoral. The application must implement an object that inherits from asIBinaryStream to provide the necessary stream operations.

The pre-compiled byte code is currently not platform independent, so you need to make sure the byte code is compiled on a platform that is compatible with the one that will load it.

virtual void asIScriptModule::SetName ( const char * name )

pure virtual

Parameters

[in] name The new name.

Sets the name of the script module.

virtual int asIScriptModule::UnbindAllImportedFunctions ( )

pure virtual

Returns: A negative value on error.

Unbinds all imported functions in the module.

virtual int asIScriptModule::UnbindImportedFunction ( int importIndex )

pure virtual

Parameters

[in] importIndex The index of the imported function.

Returns: A negative value on error.

Return values

asINVALID_ARG The index is not valid. Unbinds the imported function.

Public Member Functions

Member Function Documentation